// Copyright (c) 2024, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

import 'dart:async';

extension type E(Future<String> it) implements Future<String> {}

foo(FutureOr<String> x) {}

E bar() => throw 0;

test() => foo(bar()); // Ok.
